Cup cakes are displayed in the window of Cuckoo's bakery in Edinburgh, in Scotland September 17, 2014. The bakery had been running the 'Cuckoo's cup cake opinion poll', for 200 days, displaying the percentage of cakes sold in each of three categories.The referendum on Scottish independence will take place on September 18, when Scotland will vote whether or not to end the 307-year-old union with the rest of the United Kingdom. REUTERS/Russell Cheyne (BRITAIN - Tags: POLITICS TPX IMAGES OF THE DAY ELECTIONS)